AudioTheory Guitars version 1.1.0 is now here. This extends the note playback functionality so that each note can also be played by clicking on it in the chord or fretboard diagrams. This is particularly useful when translating from guitar to piano; you can now simply click on your guitar note to see where it sits on the keyboard.

There is also now a 'play' button next to each chord. Press this to see your guitar chord mapped onto the keyboard and the corresponding fretboard notes.